import type React from 'react';
export declare function visibleNodeText(node: React.ReactNode): string;
export interface RailSpanEntry {
    /** Stable identifier used by the mouse hit-test ('model', 'todos', …). */
    id: string;
    node: React.ReactElement;
}
export interface RailSpan {
    id: string;
    /** 0-based start column within the rail's row. */
    start: number;
    /** Rendered width in columns. */
    len: number;
}
/**
 * 0-based column spans of the segments PowerlineRail will actually keep,
 * mirroring its keep/drop and right-anchor trim math exactly. The status-bar
 * mouse hit-test consumes this so click targets are derived from the SAME
 * nodes the renderer draws — dead-reckoned column constants drifted every
 * time a chip changed width or moved lines. Keep this in lockstep with
 * PowerlineRail's layout loop above.
 */
export declare function computeRailSpans(entries: readonly RailSpanEntry[], budget: number, rightAnchor?: React.ReactElement | null): RailSpan[];
export interface PowerlineRailProps {
    segments: React.ReactElement[];
    budget: number;
    monochrome?: boolean | undefined;
    /** Override the filler background for per-line tonal layering. */
    fillBg?: string | undefined;
    /**
     * Optional right-anchored segment. When provided, the rail reserves
     * space for this segment at the right edge of the budget so its
     * position is independent of how wide the left segments are —
     * preventing visual jitter when the left side updates frequently.
     */
    rightAnchor?: React.ReactElement | null | undefined;
}
/**
 * Full-width status segments with a single uniform background.
 * No per-chip backgrounds, no transition glyphs, no segment caps —
 * just clean chips separated by a single space.
 */
export declare function PowerlineRail({ segments, budget, monochrome, fillBg, rightAnchor, }: PowerlineRailProps): React.ReactElement;
//# sourceMappingURL=powerline-rail.d.ts.map